Question

A person's right eye can see objects clearly only if they are between 26 cm and...

A person's right eye can see objects clearly only if they are between 26 cm and 88 cm away.

Part A What power of contact lens is required so that objects far away are sharp? Express your answer using two significant figures.

Part B What will be the near point with the lens in place? Express your answer using two significant figures and include the appropriate units.

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Answer #1

a) The lens should put the image of an object at infinity at the persons far point of 88 cm. the distance is negative

we have from the lens equation,

b) to find the near point with lens in place, we find the object distance to form an image 26 cm in front of the eye.

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